<template>
  <a-layout>
    <a-layout-content
        :style="{ background: '#fff', padding: '24px', margin: 0, minHeight: '280px' }"
    >
      <a-row :gutter="24">
        <a-col :span="8">
          <p>
            <a-form
                layout="inline"
                :model="param"
            >
              <a-form-item>
                <a-input v-model:value="param.name" placeholder="名称">
                  <template #prefix><UserOutlined style="color: rgba(0, 0, 0, 0.25)" /></template>
                </a-input>
              </a-form-item>
              <a-form-item>
                <a-button type="primary" @click="handleQuery()" size="large">
                  查询
                </a-button>
              </a-form-item>
              <a-form-item>
                <a-button type="primary" @click="add()" size="large">
                  新增
                </a-button>
              </a-form-item>
            </a-form>
          </p>
          <a-table
              v-if="level1.length > 0"
              :columns="columns"
              :row-key="record => record.id"
              :data-source="level1"
              :loading="loading"
              :pagination="false"
              size="small"
              :defaultExpandAllRows="true"
          >
            <template #name="{text,record}" >
              {{record.sort}} {{text}}
            </template>
            <template v-slot:action="{text, record }">
              <a-space size="small">
                <a-button type="primary" @click="edit(record)" size="small">
                  编辑
                </a-button>
                <a-popconfirm
                    title="删除后不可恢复，确认删除？"
                    ok-text="是"
                    cancel-text="否"
                    @confirm="showConfirm(record.id)"
                >
                  <a-button danger  @click="handleDelete(record.id)" size="small">
                    删除
                  </a-button>
                </a-popconfirm>
              </a-space>
            </template>
          </a-table>
        </a-col>
        <a-col :span="16">
          <p>
            <a-form layout="inline" :model="param">
              <a-form-item>
                <a-button type="primary" @click="handleSave()">
                  保存
                </a-button>
              </a-form-item>
            </a-form>
          </p>
          <a-form :model="doc" layout="vertical">
            <a-form-item>
              <a-input v-model:value="doc.name" placeholder="名称" />
            </a-form-item>
            <a-form-item>
              <a-tree-select
                  v-model:value="doc.parent"
                  style="width: 100%"
                  :dropdown-style="{ maxHeight: '400px', overflow: 'auto' }"
                  :tree-data="treeSelectData"
                  placeholder="请选择父文档"
                  tree-default-expand-all
                  :replaceFields="{title:'name',key:'id',value:'id'}"
              >
              </a-tree-select>
            </a-form-item>
            <a-form-item>
              <a-input v-model:value="doc.sort" placeholder="顺序" />
            </a-form-item>

            <a-form-item>
              <a-button type="primary" @click="handlePreviewContent()">
                <EyeOutlined/>
                内容预览
              </a-button>
            </a-form-item>

            <a-form-item>
              <div id="content"></div>
            </a-form-item>
          </a-form>
        </a-col>
      </a-row>

      <a-drawer :closable="false" :visible="drawerVisible" placement="right" width="900" @close="onDrawerClose">
        <div :innerHTML="previewHtml" class="wangeditor"></div>
      </a-drawer>
    </a-layout-content>
  </a-layout>
<!--  <a-modal-->
<!--      title="文档表单"-->
<!--      v-model:visible="modalVisible"-->
<!--      :confirm-loading="modalLoading"-->
<!--      @ok="handleModalOk"-->
<!--  >-->
<!--    -->
<!--  </a-modal>-->
</template>
<script lang="ts">
import { defineComponent,onMounted,ref} from 'vue';
import {message, Modal} from 'ant-design-vue'
import axios from 'axios';
import {Tool} from "@/util/tool";
import {useRoute} from "vue-router";
import E from "wangeditor"

export default defineComponent({
  name: 'AdminDoc',
  setup() {
    //useRoute 路由内置的变量
    const route = useRoute();
    console.log('路由：', route);
    console.log('route.path: ', route.path);
    console.log('route.query: ', route.query);
    console.log('route.params: ', route.params);
    console.log('route.fullPath: ', route.fullPath);
    console.log('route.name: ', route.name);
    console.log('route.meta: ', route.meta);

    const param = ref();
    param.value = {};

    const docs = ref();
    const loading = ref(false);

    // const docIds = ref();
    //因为树选择组件的属性状态，会和当前编辑的节点而变化，所以单独生命一个响应式变量
    const treeSelectData = ref();
    treeSelectData.value = [];
    const level1 = ref(); //一级文档树，children属性就是二级文档

    const columns= [
      {
        title: '名称',
        dataIndex: 'name',
        slots: {customRender: 'name'}
      },
      {
        title: 'Action',
        key: 'action',
        slots: { customRender: 'action'}
      },
    ];


    level1.value = [];   //初始化时赋值一个空数组，为了解决v-if level.length为空时发生报错。
    /**
     * 数据查询
     */
    const handleQuery = () => {
      loading.value = true;
      level1.value = [];
      axios.get("/doc/all/" + route.query.ebookId).then((response) => {
        loading.value = false;
        const data = response.data;
        if (data.success) {
          docs.value = data.content;
          console.log("原始数组:",docs.value);

          level1.value = {};
          level1.value = Tool.array2Tree(docs.value,0)
          console.log("树形结构：",level1);

          // 父文档下拉框初始化，相当于点击新增
          treeSelectData.value = Tool.copy(level1.value);
          treeSelectData.value.unshift({id: 0, name: '无'});
        } else {
          message.error(data.message)
        }
      });
    };


    // -------- 表单 ---------
    /**
     * 保存
     */

    const doc = ref();
    doc.value = {
      ebookId: route.query.ebookId
    };
    const modalVisible = ref(false);
    const modalLoading = ref(false);
    const editor = new E('#content');
    editor.config.zIndex = 0;


    const handleSave = () => {
      modalLoading.value = true;
      doc.value.content = editor.txt.html();
      axios.post("doc/save",doc.value).then((response)=>{
        modalLoading.value = false;
        const data = response.data;  //data = commonResp
        if(data.success) {
          // modalVisible.value = false;
          message.success("保存成功！");
          //重新加载列表
          handleQuery();
        } else {
          message.error(data.message);
        }
      });
    };

    const setDisable = (treeSelectData:any,id:any) => {
      console.log(treeSelectData,id);
      //遍历数组，即遍历某一层节点
      for (let i = 0; i < treeSelectData.length; i++) {
        const node = treeSelectData[i];
        if (node.id ===id) {
          //如果当前节点就是目标节点
          console.log("disabled",node);
          //将目标节点设置为disabled
          node.disabled = true;

          //遍历所有节点，将所有节点全部加上disabled
          const children = node.children;
          if (Tool.isNotEmpty(children)) {
            for (let j = 0; j < children.length; j++) {
              setDisable(children,children[j].id);
            }
          }
        } else {
          //如果当前节点不是目标节点，则到子节点在找找看
          const children = node.children;
          if (Tool.isNotEmpty(children)) {
            setDisable(children,id);
          }
        }
      }
    };

    const ids: Array<string> = [];
    const names: Array<string> = [];

    //获取删除节点的节点id以及其子节点的节点id
    const getDeleteIds =  (treeSelectData:any,id:any) => {
      console.log(treeSelectData,id);
      //遍历数组，即遍历某一层节点
      for (let i = 0; i < treeSelectData.length; i++) {
        const node = treeSelectData[i];
        if (node.id ===id) {
          //如果当前节点就是目标节点
          console.log("delete",node);
          //将目标id放进结果集ids
          // node.disabled = true;
          ids.push(id);
          names.push(node.name);
          //遍历所有节点
          const children = node.children;
          if (Tool.isNotEmpty(children)) {
            for (let j = 0; j < children.length; j++) {
              getDeleteIds(children,children[j].id);
            }
          }
        } else {
          //如果当前节点不是目标节点，则到子节点在找找看
          const children = node.children;
          if (Tool.isNotEmpty(children)) {
            getDeleteIds(children,id);
          }
        }
      }
    };

    /**
     * 内容查询
     */
    const handleQueryContent = () => {
      axios.get("doc/find-content/"+doc.value.id).then((response)=>{
        const data = response.data;
        if (data.success) {
          editor.txt.html(data.content)
        } else {
          message.error(data.message)
        }
      });
    };


    /**
     * 编辑
     */
    const edit = (record: any) => {
      //清空富文本框
      editor.txt.html('');
      modalVisible.value = true;
      doc.value =Tool.copy(record);

      handleQueryContent();   //等doc.value有值的时候在执行文档内容查询
      //不能选择当前节点及其所有子孙节点，作为父节点，会使树断开
      treeSelectData.value = Tool.copy(level1.value);
      setDisable(treeSelectData.value,record.id);

      //为选择树添加一个"无"
      treeSelectData.value.unshift({id:0,name:'无'});
    };
    /**
     * 新增
     */
    const add = () => {
      //清空富文本框
      editor.txt.html("");
      modalVisible.value = true;
      doc.value = {
        ebookId :route.query.ebookId
      };

      treeSelectData.value = Tool.copy(level1.value);

      //为选择树添加一个"无"
      treeSelectData.value.unshift({id:0,name:'无'});
    };
    /**
     * 删除
     */
    const handleDelete = (id: number) => {
      ids.length = 0;
      console.log('ids', ids);
      getDeleteIds(level1.value,id);
      console.log('id为：'+id)
      axios.delete("doc/delete/"+ ids.join(",")).then((response) => {
        const data = response.data;  //data = commonResp
        if(data.success) {
          //重新加载列表
          handleQuery();
        }else{
          message.error(data.message);
        }
      });
    };

    const showConfirm = (id: number) => {
      ids.length = 0;
      names.length = 0;
      getDeleteIds(level1.value, id);
      Modal.confirm({
        title: '重要提醒',
        // icon: ExclamationCircleOutlined,
        content: '将删除：【' + names.join('，') + '】，删除后不可恢复。确认删除？',
        onOk() {
          handleDelete(id);
        },
        // eslint-disable-next-line @typescript-eslint/no-empty-function
        onCancel() {
        },
      });
    }

    /**
     * 富文本预览
     */
    const drawerVisible = ref(false);
    const previewHtml = ref();
    const handlePreviewContent = () => {
      const html = editor.txt.html();
      previewHtml.value = html;
      drawerVisible.value = true;
    };
    const onDrawerClose = () => {
      drawerVisible.value = false;
    };

    onMounted(()=>{
      handleQuery();
      editor.create();
    });

    return{
      param,
      // docs,
      level1,
      columns,
      loading,

      edit,
      add,
      handleDelete,
      handleQuery,

      doc,
      modalVisible,
      modalLoading,
      handleSave,
      treeSelectData,
      showConfirm,
      drawerVisible,
      previewHtml,
      handlePreviewContent,
      onDrawerClose,
    }
  }
});
</script>
